Spring coiling machine having interchangeable presettable elements

Abstract

A coiling device for spring coiling machines, having exchangeable elements that contain adjusting screws. Each coiling pin is mounted in a receptacle so as to rotate therewith and so as to be able to rotate therein about its longitudinal axis after a clamping screw is loosened, and to be capable of moving in its longitudinal direction by means of a set screw, and whereby each coiling pin receptacle is mounted in or on a coiling pin holder, by means of which the coiling pin held in the receptacle can be pivoted in a controlled manner by means of set screws, and can be changed in position by means of an adjusting slide that mounts the coiling pin holder, by means of at least one set screw. One or two such coiling devices are preset in one finger or two finger spring coiling machines to produce helical springs from endless wire. An adjusting device is also provided for coiling tools on spring coiling machines having a coiling device.

I claim: 
     
       1. A coiling device for spring coiling machines, comprising exchangeable, presettable elements, each element having a plurality of set screws disposed therein, and further comprising a coiling pin nonrotationally mounted in a coiling pin receptacle by means of a first set screw, said pin movable in a pin longitudinal axis direction by means of the first set screw, said coiling pin receptacle mounted in or on a coiling pin holder, said coiling pin held in the receptacle pivotable about the pin longitudinal axis in a controlled manner by means of second set screws and said coiling pin adjustable in position by means of an adjusting slide that mounts the coiling pin holder positionable by means of third set screws, said coiling pin receptacle is rotatable in a controlled manner about the longitudinal axis of the mounted coiling pin by means of said second set screws that cooperate with the coiling pin holder; a pivot axis of said coiling pin holder aligned to perpendicularly cross the longitudinal axis of the mounted coiling pin; and the position of the coiling pin relative to the adjusting slide associated therewith is adjustable by displacing and rotating the coiling pin receptacle by means of a fourth set screw and said third set screws, respectively; said coiling pin receptacle and said second set screws for rotating the mounted coiling pin about its longitudinal axis cooperate to form a first exchangeable, presettable element, and each coiling pin holder and said third set screws for pivoting the mounted coiling pin about the pivot axis perpendicular thereto cooperate to form a second exchangeable, presettable element. 
     
     
       2. Coiling device according to claim 1, wherein the second set screws for rotating a coiling pin are supported against a first support surface rigidly connected with the associated coiling pin holder on different sides of the longitudinal axis of the coiling pin. 
     
     
       3. Coiling device according to claim 2, further including a bore in the coiling pin holder for mounting of the receptacle of a round coiling pin on the associated coiling pin holder. 
     
     
       4. Adjusting device for presetting set screws in the coiling device according to claim 2, further comprising a first reference surface that corresponds to the first support surface for the rotational second set screws and rotatable about a metering axis corresponding to the longitudinal axis of the coiling pin, for positioning the rotational second set screws in a nonrotatable coiling pin receptacle; and further characterized by transferability of the rotation of the reference surface to an angle metering device. 
     
     
       5. Adjusting device, according to claim 4, on a coiling device having second set screws for pivoting a coiling pin which are supported against a second surface rigidly connected with the associated adjusting slide on different sides of the pivot axis, the adjusting device adapted for presetting the second set screws including a second reference surface that corresponds to the second support surface for the pivoting second set screws and can rotate about a metering axis corresponding to the longitudinal axis for positioning the pivoting second set screws, said coiling pin holder holding said second set screws is nonrotatably mounted; and further characterized by transferability of the rotation of the metering axis to an angle metering device. 
     
     
       6. Adjusting device according to claim 5, wherein the first reference surface for positioning the rotational second set screws is nonrotatable, and the coiling pin receptacle is nonrotationally connected with the metering axis by means of the coiling pin. 
     
     
       7. Coiling device according to claim 1, wherein the second set screws for pivoting a coiling pin are supported against a second support surface rigidly connected with the associated adjusting slide on different sides of the pin longitudinal axis. 
     
     
       8. A coiling device according to claim 7, wherein the coiling pin receptacle is provided with a central hole having a quadratic cross-sectional shape adapted to receive a coiling pin selected from the group of shapes consisting of round or four-sided shapes and further adapted to receive an attachment. 
     
     
       9. A coiling device according to claim 7, wherein the coiling pin receptacle is adapted to receive a coiling tool generally in the shape of a turntable. 
     
     
       10. A coiling device according to claim 7, further including a bore in the coiling pin holder for mounting the receptacle of a round coiling pin on the associated coiling pin holder. 
     
     
       11. Coiling device according to claim 1, wherein the coiling pin receptacle is provided with a central hole having a quadratic cross-sectional shape adapted to receive a coiling pin selected from the group of shapes consisting of round or four-sided shapes and further adapted to receive an attachment. 
     
     
       12. A coiling device according to claim 11, further including a bore in the coiling pin holder for mounting the receptacle of a round coiling pin on the associated coiling pin holder. 
     
     
       13. Coiling device according to claim 1, wherein the coiling pin receptacle is adapted to receive a coiling tool generally in the shape of a turntable. 
     
     
       14. A coiling device according to claim 13, further including a bore in the coiling pin holder for mounting the receptacle of a round coiling pin on the associated coiling pin holder. 
     
     
       15. Adjusting device for coiling tools on machines for coiling springs having a longitudinal axis, having an adjustable tool receptacle in which a coiling tool is mounted so as to be adjustable by means of a first set screw in the direction of a coiling tool longitudinal axis that crosses the longitudinal axis of the spring to be manufactured; having a tool holder that supports the tool receptacle, which tool receptacle is rotatably mounted on said tool holder by means of a pair of second set screws that are supported on the tool holder on both sides of the tool; and having an adjusting slide mounted laterally to the spring longitudinal axis, on which slide the tool holder is pivotable about a tool holder longitudinal axis lying parallel to the spring longitudinal axis; the tool holder supported on both sides of the tool holder longitudinal axis on a slide portion of the device comprising a bolt having two reference surfaces by means of third set screws; characterized in that the tool receptacle is rotatable about the longitudinal axis of the coiling tool by means of the pair of second set screws; that the longitudinal axes of the bolt attached to the adjusting slide and the tool, respectively intersect each other perpendicularly; that a fourth set screw is mounted parallel to the longitudinal axis of the bolt on the tool holder and is supported on the adjusting slide; and that the pair of second set screws is mounted on both sides of the longitudinal axis of the tool on the tool receptacle; the tool receptacle with mounted tool, the first set screw for the longitudinal adjustment thereof and the pair of second set screws cooperate to comprise a first structural unit that is easily separable from the tool holder in the direction of the longitudinal axis of the tool, and the tool holder, the fourth set screw for the adjustment of the tool holder parallel to the spring longitudinal axis and the pair of third set screws cooperate to comprise a second structural unit that can be separated from the adjusting slide in the direction of the longitudinal axis of the bolt after a latch is released which second structural unit, like the first structural unit, is presettable in a separate adjusting device by adjusting the set screws associated therewith and is axially joinable with the first structural unit and with the adjusting slide. 
     
     
       16. An adjusting device for coiling tools on a spring coiling machine, each spring having a spring longitudinal axis, said adjusting device comprising: (a) a first structural unit comprised of (i) an adjustable tool receptacle;   (ii) a coiling tool mounted in said tool receptacle, said coiling tool having a coiling tool longitudinal axis and at least two sides;   (iii) a first set screw for adjusting said coiling tool along said coiling tool longitudinal axis;   (iv) a pair of second set screws for rotating said tool receptacle about said coiling tool longitudinal axis,     (b) a second structural unit comprised of (i) a tool holder for supporting said tool receptacle, said tool holder having a tool holder pivoting axis, a slide portion including two reference surfaces on a bolt, said bolt having a longitudinal axis, said receptacle mounted on said tool holder by said second set screws, said second set screws supported on said holder on said two sides of said tool,   (ii) a pair of third set screws, supported on both sides of the tool holder pivoting axis on said reference surfaces,   (iii) a fourth set screw for adjustment of the tool holder longitudinal axis parallel to the spring longitudinal axis, said fourth set screw mounted parallel to the bolt longitudinal axis and supported on an adjusting slide,     (c) the adjusting slide mounted laterally to the spring longitudinal axis, said tool holder mounted on said slide and pivotable about the tool holder pivoting axis lying parallel to said spring longitudinal axis,   (d) a releasable latch for holding said second structural unit to said adjusting slide,   wherein said longitudinal axes of said bolt attached to said adjusting slide and said tool, respectively intersect perpendicularly, said first structural unit is easily separable from said tool holder along said tool longitudinal axis, said second structural unit is easily separable from said adjusting slide along the bolt longitudinal axis upon the release of said latch, said first structural unit is axialy joinable with said second structural unit which is axially joinable with said adjusting slide, and said first and second structural units each presettable, in an adjusting device external therewith, by adjusting said set screws.   
     
     
       17. Adjusting device for the first and second structural units having set screws in the adjusting device according to claim 14; having a base plate with a bolt corresponding to the adjusting slide with a bolt and the nonmovable portion, having a mounting element that can rotate about a mounting element vertical axis, with a reference surface for supporting the pair of second set screws of the tool holder that is nonrotationally mounted on the base plate on both sides of the vertical rotational axis of the mounting element; having a support surface secure to a plate for the pair of second set screws of the tool receptacle with a mounted tool, which itself or by means of an attachment has a cross-sectional profile that deviates from the circular and can be inserted in a corresponding non-circular hole in the bolt secured to a plate; and having an angle meter coupled with the rotational mounting element, which angle meter measures increments of a mounting element revolution. 
     
     
       18. Adjusting device according to claim 17, having an axle that stands perpendicularly on the base plate, and on which an extension arm including a length measuring device and arranged parallel to the plate, is mounted in such a manner as to be axially displaceable, the extension arm can be pivoted about the axle until the length measuring device stands above a tool holder that is nonrotationally arranged on the bolt secured to the plate; and that the base plate, in the rotational range of the extension arm, contains a sleeve for the mounting of a tool receptacle with the mounted tool in a vertical position. 
     
     
       19. A coiling device for spring coiling machines comprising exchangeable presettable elements including: (a) a coiling pin;   (b) a coiling pin receptacle mounted on a coiling pin holder,   (c) a first set screw for mounting said coiling pin in said coiling pin receptacle and for adjusting pin position along a pin longitudinal axis,   (d) second set screws for holding said coiling pin receptacle and for permitting pivoting of said receptacle about said pin longitudinal axis,   (e) an adjusting slide that mounts said pin holder for adjusting said coiling pin position, and   (f) third set screws cooperating with said adjusting slide for permitting rotation of said receptacle about an axis perpendicular to the pin longitudinal axis,   said coiling pin receptacle, and said second set screws forming a first exchangeable presettable element, said coiling pin holder, and said third set screws forming a second exchangeable presettable element.   
     
     
       20. A coiling device for spring coiling machines, comprising exchangeable, presettable elements, each element having a plurality of set screws disposed therein, and further comprising a coiling pin nonrotationally mounted in a coiling pin receptacle by means of a first set screw, said pin movable in a pin longitudinal axis direction by means of the first set screw, said coiling pin receptacle mounted in or on a coiling pin holder, said coiling pin held in the receptacle pivotable about the pin longitudinal axis in a controlled manner by means of second set screws and said coiling pin adjustable in position by means of an adjusting slide that mounts the coiling pin holder positionable by means of third set screws, said coiling pin receptacle is rotatable in a controlled manner about the longitudinal axis of the mounted coiling pin by means of said second set screws that cooperate with the coiling pin receptacle; a pivot axis of said coiling pin holder aligned to perpendicularly intersect the longitudinal axis of the mounted coiling pin; and the position of the coiling pin relative to the adjusting slide associated therewith is adjustable by displacing and rotating the coiling pin holder by means of a fourth set screw and said third set screws, respectively; said coiling pin holder and said second set screws for rotating the mounted coiling pin about its longitudinal axis cooperate to form a first exchangeable, presettable element, and said adjusting slide and said third set screws for pivoting the mounted coiling pin about the pivot axis perpendicular thereto cooperate to form a second exchangeable, presettable element. 
     
     
       21. A coiling device for spring coiling machines comprising exchangeable presettable elements including: (a) a coiling pin;   (b) a coiling pin receptacle mounted on a coiling pin holder,   (c) a first set screw for mounting said coiling pin in said coiling pin receptacle and for adjusting pin position along a pin longitudinal axis,   (d) second set screws for holding said coiling pin receptacle and for permitting pivoting of said receptacle about said pin longitudinal axis,   (e) an adjusting slide that mounts said pin holder for adjusting said coiling pin position, and   (f) third set screws cooperating with said holder for permitting rotation of said receptacle about an axis perpendicular to the pin longitudinal axis,   said coiling pin holder and said second set screws forming a first exchangeable presettable element, said adjusting slide and said third set screws forming a second exchangeable presettable element.   
     
     
       22. A coiling device as in claim 1, 13, 20 or 21, further comprising a clamping screw for securing said coiling pin in said coiling pin receptacle and for permitting said coiling pin to move along said pin longitudinal axis and to rotate about said pin longitudinal axis.